惯例图示 动画皆用原生自带。方便理解复用
本示例 简化了 outouch之间的复杂判断。运用一些自带的属性动画 做出比较圆润的效果。
分享给大家
基本图示效果。
1.拉到按钮一半 还原超过一半自动显示全部
2.显示全部点击非删除区域还原
3.点击删除下面的item上移 自身缩小Y消失方便看出变化间隙
Module下载
1.用于兼容outouch和子view点击事件的容器
这里作为你item根的容器
package com.rex;
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewParent;
import android.widget.LinearLayout;
/**
* Created by Rex on 2016/10/25.
* 能兼容子view点击事件和自身onTouch事件的容器-LinearLayout可改
*/
public class ParentOnTouchChildClickLinearLayout extends LinearLayout {
public ParentOnTouchChildClickLinearLayout(Context context) {
super(context);
}
public ParentOnTouchChildClickLinearLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ParentOnTouchChildClickLinearLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
private int yyy = -1;
private int xxx = -1;
private boolean isMove = false;
/**
* 核心方法
*
* @param event
* @return
*/
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
isMove = false;
//此处为break所以 onTouch中没有Down
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
if (!isMove)
return false;
isMove = false;
break;
case MotionEvent.ACTION_MOVE:
if (!isMove) {
yyy = (int) event.getRawY();
xxx = (int) event.getRawX();
}
isMove = true;
//细节优化 短距离移除
float moveY = event.getRawY();
float moveX = event.getRawX();
//如果是非点击事件就拦截 让父布局接手onTouch 否则执行子ViewOnClick
if (Math.abs(moveY - yyy) > dip2px(getContext(), 20) || Math.abs(moveX - xxx) > dip2px(getContext(), 20)) {
final ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
return true;
}
break;
}
return false;
}
/**
* 根据手机的分辨率从 dp 的单位 转成为 px(像素)
*/
public static int dip2px(Context context, float dpValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dpValue * scale + 0.5f);
}
}Item XML
item.xml
为方便大家拓展 删除区域和内容区域都用了容器装了起来。可能大家还会自定义这些区域 而不是一个按钮
<?xml version="1.0" encoding="utf-8"?>
<com.rex.ParentOnTouchChildClickLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/root"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/holo_green_light"
android:clipChildren="false"
android:orientation="horizontal">
<LinearLayout
android:id="@+id/llContext"
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_margin="1dp"
android:gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="测试文本"
android:textColor="#fff"
android:textSize="18sp"/>
<TextView
android:id="@+id/tvTestClick"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="子view点击兼容性测试"
android:textSize="18sp"/>
</LinearLayout>
<LinearLayout
android:id="@+id/llDelete"
android:layout_width="100dp"
android:layout_height="match_parent"
android:background="#456431">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/holo_orange_light"
android:gravity="center"
android:text="删除"
android:textSize="20sp"/>
</LinearLayout>
</com.rex.ParentOnTouchChildClickLinearLayout>JAVA代码
package com.rex;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ObjectAnimator;
import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
/**
* 一个较容易理解
* 多用系统方法的少bug的 横滑删除listview
* 此方法也适用于任意view
*/
public class MainActivity extends Activity {
private float max = 300;//你想滑动的极限长度默认 本demo以删除布局宽度为max
private ArrayList<String> data = new ArrayList<String>() {{
add("str01");
add("str02");
add("str03");
add("str04");
add("str05");
add("str06");
add("str07");
add("str08");
}};
private ListView lv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView) findViewById(R.id.lv);
lv.setAdapter(new IAdapter());
}
class IAdapter extends BaseAdapter {
@Override
public int getCount() {
return data.size();
}
@Override
public Object getItem(int i) {
return null;
}
@Override
public long getItemId(int i) {
return 0;
}
@Override
public View getView(final int position, View view, ViewGroup viewGroup) {
if (view == null) {
view = View.inflate(MainActivity.this, R.layout.item, null);
}
ParentOnTouchChildClickLinearLayout root = (ParentOnTouchChildClickLinearLayout) view.findViewById(R.id.root);
TextView tvTestClick = (TextView) view.findViewById(R.id.tvTestClick);
final LinearLayout llContext = (LinearLayout) view.findViewById(R.id.llContext);
final LinearLayout llDelete = (LinearLayout) view.findViewById(R.id.llDelete);
tvTestClick.setText(data.get(position));
ViewTreeObserver vto = llDelete.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
//监听一次马上结束
if (Build.VERSION.SDK_INT < 16) {
llDelete.getViewTreeObserver().removeGlobalOnLayoutListener(this);
} else {
llDelete.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
max = llDelete.getWidth();
//得到删除按钮长度 得到最大拖动限定
Log.i("rex", "max--" + max);
}
});
llContext.setTranslationX(0);
llDelete.setTranslationX(0);
view.setScaleY(1);
view.setTranslationY(0);
final View finalView = view;
llDelete.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//删除
ObjectAnimator scaleY = ObjectAnimator.ofFloat(finalView, "scaleY", 1, 0);
scaleY.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
data.remove(position);
IAdapter.this.notifyDataSetChanged();
}
});
scaleY.setDuration(800).start();
for (int i = 1; i < lv.getChildCount() - position; i++) {
ObjectAnimator.ofFloat(lv.getChildAt(i + position), "translationY", 0, -finalView.getMeasuredHeight()).setDuration(800).start();
}
}
});
tvTestClick.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "测试按钮被调用！", Toast.LENGTH_SHORT).show();
}
});
llContext.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
Toast.makeText(MainActivity.this, "item 长按被调用！", Toast.LENGTH_SHORT).show();
return true;
}
});
//点击内容让item回到最初的位置
llContext.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//点击归位
ObjectAnimator.ofFloat(llContext, "translationX", llContext.getTranslationX(), 0).setDuration(600).start();
ObjectAnimator.ofFloat(llDelete, "translationX", llDelete.getTranslationX(), 0).setDuration(600).start();
}
});
root.setOnTouchListener(new View.OnTouchListener() {
private float diff;
float x = -1;
float mx;
boolean isMove;
@Override
public boolean onTouch(View v, MotionEvent event) {
if (max == 0) {
return false;
}
//当按下时处理
if (event.getAction() == MotionEvent.ACTION_MOVE) {
//由于父onInterceptTouchEvent 为false所以down无效 且不需要 以-1作为初始X
//这里类似一般写法的ACTION_DOWN初始化
if (x == -1)
x = event.getRawX();
mx = event.getRawX();
isMove = true;
diff = mx - x;
if (diff < -max)
diff = -max;
if (llContext.getTranslationX() > 0 && diff > llContext.getTranslationX())
diff = llContext.getTranslationX();
llContext.setTranslationX(diff);
llDelete.setTranslationX(diff);
return true;
} else if (event.getAction() == MotionEvent.ACTION_UP) {
x = -1;
if (isMove) {
//自动归位 过半则全部显示删除布局 反之则回收为正常
if (diff < -max / 2.0f) {
ObjectAnimator.ofFloat(llContext, "translationX", diff, -max).setDuration(600).start();
ObjectAnimator.ofFloat(llDelete, "translationX", diff, -max).setDuration(600).start();
} else {
ObjectAnimator.ofFloat(llContext, "translationX", diff, 0).setDuration(600).start();
ObjectAnimator.ofFloat(llDelete, "translationX", diff, 0).setDuration(600).start();
}
return true;
} else {
return false;
}
} else {//其他模式
//设置背景为未选中正常状态
//v.setBackgroundResource(R.drawable.mm_listitem_simple);
}
return true;
}
});
return view;
}
}
}
作者：qq_28844947 发表于2016/10/26 17:42:11 原文链接
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